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Design media types in CPE4
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ChronosX88
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@ -4,8 +4,6 @@
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This extension is intended for organizing chats between some entities.
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`// TODO describe about events`
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## 2. Requirements
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- Exchanging text messages
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@ -33,9 +31,17 @@ This extension is intended for organizing chats between some entities.
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## 5. Chat message types
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- `urn:cadmium:chats:message-types:general` - message with text and optional media
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- `urn:cadmium:chats:message-types:audio` - audio message
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- `urn:cadmium:chats:message-types:geolocation` - message with geolocation (coordinates)
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- `urn:cadmium:chats:message:types:general` - message with text and optional media
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- `urn:cadmium:chats:message:types:geolocation` - message with geolocation (coordinates)
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### 5.1. Media types
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- `urn:cadmium:chats:media:photo` - a photo
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- `urn:cadmium:chats:media:audio` - an audio or voice message
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- `urn:cadmium:chats:media:video` - a video or rounded video message
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- `urn:cadmium:chats:media:file` - any other file type
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- `urn:cadmium:chats:media:sticker` - a sticker
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- `urn:cadmium:chats:media:gif` - an animated GIF
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## 6. Use cases
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@ -49,7 +55,7 @@ This extension is intended for organizing chats between some entities.
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"type": "urn:cadmium:chats:message",
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"to": ["@user2@cadmium.org"],
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"payload": {
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"type": "urn:cadmium:chats:message-types:general",
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"type": "urn:cadmium:chats:message:types:general",
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"content": {
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"text": "hello world",
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}
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@ -98,7 +104,7 @@ This extension is intended for organizing chats between some entities.
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"payload": {
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"messageID": "3b5135a5-aff5-4396-a629-a254f383e82f",
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"originServerTimestamp": 1599327584,
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"type": "urn:cadmium:chats:message-types:general",
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"type": "urn:cadmium:chats:message:types:general",
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"content": {
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"text": "hello world",
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}
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@ -108,22 +114,21 @@ This extension is intended for organizing chats between some entities.
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### 6.2. Exchanging media
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1. Upload the media to HTTP Upload service (explanation out of scope of this document)
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2. Send message containing the URL of uploaded media:
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1. Upload the media to Content Service (explanation out of scope of this document)
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2. Send message containing the metadata of uploaded media:
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```json
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{
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"id": "abcd",
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"type": "urn:cadmium:chats:message",
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"to": ["@user2@cadmium.org"],
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"to": ["@user2@cadmium.im"],
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"payload": {
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"type": "urn:cadmium:chats:message-types:general",
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"content": {
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"text": "",
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"media": [
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{
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"url": "https://upload.cadmium.im/4a771ac1-f0b2-4a4a-9700-f2a26fa2bb67",
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"mimeType": "image/jpeg"
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"id": "4a771ac1-f0b2-4a4a-9700-f2a26fa2bb67@content.cadmium.im"
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}
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]
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}
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@ -138,7 +143,7 @@ This extension is intended for organizing chats between some entities.
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{
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"id": "abcd",
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"type": "urn:cadmium:chats:message",
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"from": "cadmium.org",
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"from": "cadmium.im",
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"ok": true,
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"payload": {
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"messageID": "7a1b9a72-1677-4476-9b22-ef7fdbcff52e",
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@ -147,6 +152,8 @@ This extension is intended for organizing chats between some entities.
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}
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```
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**Note**: The Cadmium server will validate media ID which was provided by client. If it doesn't exist or invalid, server will respond with corresponding error.
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3. Receive message with media on other side:
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```json
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@ -158,13 +165,18 @@ This extension is intended for organizing chats between some entities.
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"payload": {
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"messageID": "7a1b9a72-1677-4476-9b22-ef7fdbcff52e",
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"originServerTimestamp": 1599329232,
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"type": "urn:cadmium:chats:message-types:general",
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"type": "urn:cadmium:chats:message:types:general",
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"content": {
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"text": "",
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"media": [
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{
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"url": "https://upload.cadmium.im/4a771ac1-f0b2-4a4a-9700-f2a26fa2bb67",
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"mimeType": "image/jpeg"
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"id": "4a771ac1-f0b2-4a4a-9700-f2a26fa2bb67@content.cadmium.im",
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"type": "urn:cadmium:chats:media:photo",
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"attrs": {
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"width": 512,
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"height": 512
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},
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"size": 96413, // 96kb
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}
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]
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}
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@ -231,7 +243,7 @@ This extension is intended for organizing chats between some entities.
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```json
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{
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"id": "defg",
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"type": "urn:cadmium:chats:read",
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"type": "urn:cadmium:chats:typing",
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"from": "@user2@cadmium.im",
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"ok": true,
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"payload": {}
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@ -244,6 +256,10 @@ This extension is intended for organizing chats between some entities.
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- Client sends typing notification message every second when he is typing. If there is no notifications about typing more than one second then consider that user is stopped the typing.
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### 7.2. Message/Media ID
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- This is typically Federated Entity ID of message/media (as described and reserved in core specs) which was stored in server's database/content service storage.
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## 8. JSON Schema
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### Send message (`urn:cadmium:chats:message`)
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@ -269,7 +285,7 @@ interface SendMessageResponsePayload {
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#### Content sections
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- `urn:cadmium:chats:message-types:general`:
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- `urn:cadmium:chats:message:types:general`:
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```typescript
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interface GeneralMessageContent {
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@ -278,20 +294,49 @@ interface SendMessageResponsePayload {
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}
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interface Media {
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url: string; // url of media (where it stores)
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mimeType: string; // mime type of media
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id: string; // media ID
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type: string; // type of media
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size: int; // size of media in bytes
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fileName?: string; // filename of media (with optional extension by dot)
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attrs: MediaAttrs; // media payload (additional attributes)
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}
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// Media attributes definitions
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interface MediaAttrs {}
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// urn:cadmium:chats:media:audio
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interface AudioAttrs : MediaAttrs {
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voice: bool; // whether it is voice message
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duration: int; // duration of audio
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title?: string; // audio title
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artist?: string; // audio artist
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voiceWaveForm?: []byte; // voice wave form
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}
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// urn:cadmium:chats:media:sticker
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interface StickerAttrs : MediaAttrs {
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associatedEmoji: string; // the associated emoji with this
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stickerSetID: string; // id of sticker set which is associated with this sticker
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isAnimated: boolean; // is client need to animate this sticker
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}
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// urn:cadmium:chats:media:video
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interface VideoAttrs : MediaAttrs {
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isVideoMessage: bool; // is this a rounded video message
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duration: int; // duration of video
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width: int; // width of video
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height: int; // height of video
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}
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// urn:cadmium:chats:media:photo
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interface PhotoAttrs : MeditAttrs {
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width: int; // width of photo
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height: int; // height of photo
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}
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```
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- `urn:cadmium:chats:message-types:audio`:
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```typescript
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interface AudioMessageContent {
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url: string; // the url of audio message
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}
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```
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- `urn:cadmium:chats:message-types:geolocation`:
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- `urn:cadmium:chats:message:types:geolocation`:
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```typescript
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interface GeolocationMessageContent {
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@ -2,7 +2,7 @@
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- [Protocol Core](#protocol-core)
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- [Transport](#transport)
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- [Entity ID](#entity-id)
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- [Federated Entity ID](#federated-entity-id)
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- [Server-part](#server-part)
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- [Username/Room alias/RoomID](#usernameroom-aliasroomid)
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- [Special business rules](#special-business-rules)
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@ -12,15 +12,18 @@
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For starting we simply use JSON + Websockets.
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## Entity ID
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## Federated Entity ID
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Some reserved formats:
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- Room alias: `#<roomAlias>@<serverpart>`
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- Username: `@<username>@<serverpart>`
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- User ID with any 3PID: `%<type>:<data>@<serverpart>`
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- Currently supported only following types: `email` and `msisdn`.
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- Raw User ID: `@<UUID>@<serverpart>`
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- Message ID: `&<uuid>@<serverpart (of source server)>`
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- Room ID: `!<roomID>@<serverpart>`
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- Message ID: `&msg:<uuid>@<serverpart of source server>`
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- Media ID: `&media:<uuid>@<content service serverpart>`
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- Group Chat ID: `!<roomID>@<serverpart>`
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- Single server-part: `<serverpart>`
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### Server-part
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